Cisco Unified Communications Products Flaw Let Attackers Escalate Privileges

A contemporary discovery has highlighted a privilege escalation vulnerability within Cisco Unified Communications Merchandise. This vulnerability became once realized during inner security testing.

Cisco Unified Communications Supervisor (CUCM) and Cisco Unified Communications Supervisor Session Administration Edition (CUCM SME) maintain been realized to hang a privilege escalation vulnerability.

This vulnerability, designated CVE-2023-20266, enables an authenticated attacker with administrative rep entry to to raise their privileges and enact arbitrary code with root-stage privileges.

This vulnerability is due to of the utility’s failure to adequately restrict the kinds of recordsdata utilized for upgrades.

A malicious actor would possibly perchance clutch profit of this weakness by submitting a specially crafted upgrade file. If successfully exploited, this vulnerability would possibly perchance enable the attacker to reach increased-stage privileges, doubtlessly reaching root rep entry to.

Cisco Unified Communications Merchandise Flaw

Privilege escalation vulnerabilities are particularly relating to as they grant unauthorized customers elevated privileges, actually granting them regulate over the affected system.

On this case, an attacker who successfully exploits this vulnerability would possibly perchance prevail in full regulate over the Cisco Unified Communications Merchandise, doubtlessly leading to unauthorized rep entry to, recordsdata breaches, and disruption of worthy communication products and providers.

Cisco has promptly addressed this vulnerability and has released a security advisory outlining the info of the discipline, its attainable affect, and the steps to mitigate the threat.

The advisory offers info about affected merchandise, instrument variations, and guidance on updating to patched variations that keep away with the vulnerability.

This vulnerability affected the next Cisco merchandise:

• Emergency Responder
• Unified CM
• Unified CM SME
• Solidarity Connection

The advisory moreover offers the Cisco merchandise that are Confirmed No longer Susceptible.

Mitigation Measures:

As outlined in the advisory, Cisco recommends that affected customers practice instrument updates or workarounds.

This comprises upgrading to variations which maintain been patched to accommodate the vulnerability. In cases the assign an instantaneous upgrade is now not feasible, clients are advised to contact the Cisco Technical Aid Center (TAC).

Cisco confirmed that there have to not any workarounds that deal with this vulnerability.

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